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Which of the following can stimulate chemolithotrophic growth in bacteria?

(a) Uranium

(b) Nickle

(c) Copper

(d) Cadmium

This question was addressed to me in examination.

My question comes from Metal in chapter Microbial Transformation of Heavy Metals of Environmental Biotechnology

1 Answer

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Best answer
The correct choice is (b) Nickle

To explain: Nickle is used in many organisms for their growth purposes as they are used as a component of hydrogenase in various microorganisms, Nickle can stimulate chemolithotrophic growth in bacteria. But Uranium is radioactive and highly toxic, copper and cadmium are toxic and they do not stimulate chemolithotrophic growth in bacteria.

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